2008

TIP If you turn on Exponential, this increases the Step Size value to avoid banding.
Near % Sets the density of the fog at the Near Range (Camera Environment
Range parameter).
Far % Sets the density of the fog at the Far Range (Camera Environment
Range parameter).
Layered group
Thins and thickens the fog between an upper and lower limit. You can have
multiple layers of fog by adding multiple fog entries to the list. Because you
can animate all the fog parameters, you can also animate fog rising and falling,
changing density and color, and add
horizon on page 7809 noise.
Top Sets the upper extent (in world units) of the fog layer.
Bottom Sets the lower extent (in world units) of the fog layer.
Density Sets the overall density of the fog.
Falloff (Top/Bottom/None) Adds an exponential falloff effect so that the
density is reduced to 0 at either the Top or Bottom of the fog extent.
Horizon Noise Turns on the horizon noise system. Horizon Noise perturbs
just the horizon of the fog layer to add realism.
Size Scale factor applied to the noise. Larger scale values make the fog tendrils
larger. Default=20.
TIP If you want tendrils to really pop out, try making the density greater than
100.
Angle Determines the affected angle off the horizon line. For example, if
the angle is set to 5 (a reasonable value), then starting at 5 degrees below the
horizon, the fog will begin to break up.
This effect is mirrored above and below the horizon, which can produce strange
results when the height of the fog layer traverses the horizon. Typically you'd
want the fog to be either above or below the actual camera horizon. (You can
use the horizon line in the camera parameters as an aid to help you position
this.)
Phase Animating this parameter animates the noise. If Phase is moving in
the positive direction, then the fog tendrils will drift upward (and deform at
the same time). If your fog is above the horizon you may want to animate
Phase in the negative direction to make the tendrils fall downward.
Fog Environment Effect | 6511